Synchronizing apparatus.



.No. 839,152. PATENTED DEC. 25, 1906. H. JOLY.

SYNGHRONIZING APPARATUS. APPLICATION FILED JAN. s, 1906.

2 SHEETS-SHEET 1.

PATENYTED DEC. 25, 1906.

H.JOLY. SYNGHRONIZING APPARATUS. APPLICATION FILED JAN 8 1906 2 SHEETS-SHEET 2.

the eye of the observer noticing the differ HENRI JOLY, OF PA RIS, FRANCE, SYNCHRONIZINGAPPARATUS.

Specification of Letters Patent.

Patented Dec. 25, 1906.

, Application filed January 8,1906. Serial No. 295.145,

.I/ To all whom at may concern:

Be it known the t I, HENRI JOLY, a citizenof the Republic ofi'France, residing in Paris, France, have invented certain new and useful Improvements in Synchronizing Apparatus, of whichthe following is a specification. This invention relates to a synchronizing apparatus intendedto coordinatethe movements of the driving mechanisms of a honograph and a kinematograph combined When a phonograph and a kinematogra h are intended to cooperate, it is necessary or fear of completely altering the sounds to let the honograph go absolutely freely and regular y. On the cofftrary, the kinematograph allows of a certain freedom of speed without ence of spe'e'dfor instance, such as obtained in turning the apparatus by hand. V

(The synchronizing apparatus forming the subject of this invention is a speed indicator which enables the speed of the kinematogra h to be ascertained at' ever "moment an the phonograph. This indicator apparatus chiefly consists of two rotating indicator hands, preferably concentrically arranged, one of which'is freely and regularly operated by the phonograph, while the other dependson. the movem'entgiven to the kinematograph in such manner that the second hand can be made to follow exactly the speed-pf the first, the speed of the said kinematograph thus being modified. This action can be effected either by hand or by means of a resistance when the kinematographis oper ated by a mechanical or electric motor.'

In the accompanying drawings, Figure 1 shows diagrammatically the connection of the various apparatus with each other. Fig. 2 is a front View of the synchronizing apparatus according to this invention. Fig. 3 is a back view of the same apparatus, andFigz4 a vertical section on line A A of Fig. 3.

The phonograph a, which may be a cylinder or disk phonograph, is operated by any desired motor, clockwork, electric, or, any other motor.- On the spindle d of the said phonograph or on an intermediatespindle is mounted a small cam 6 with two bosses cooperating with two flexible insulated plates f for closing the circuit of an elect-riccurrent from any source-battefy p or. any other. The number of 'mterruptions thus produced in the electric; circuit is exactly in propor tion to the number of revolutions ofthe pho- .can be adjusted.

regulatedinacc ordance with that of nograph. These interru tidns. act on an electromagnet g, arrange in the casing h of I the indicator apparatus, Figs. 3 and 4.

At each passage of the current theelectromagnet g attracts the armature i, whichis provided with a spring1 the tension of which e armature i is provided at the end 0 posite tothat at which it is hin ed with" aw s In, which cooperate with a rate et-whee Z in order to cause the latterto be intermittently moved to the extent of one .tooth at each attraction and return'of the armature i.

The ratchet-wheel Zis mounted on a spindle to which is keyed a pinion m, engaging with a toothed wheel n, the spindle '0 of which passes through the front plate of the casing and is provided outside the latter with an indicator-hand 1*. wheel n is simply to reduce the s eed of the hand 1" so that it can be easily f dllowed by the eyes. Spring-blades m 12/ rest against the spindles m and n in order to maintain them during the various movements of the armature t. p

The dial 9, in front of which the hand 1' The object of the toothed moves, has itself a movement of rotation independent of the said hand. To effect this,

the saiddial Qds mounted on a fixed socket t,

through which\the spindle 0 passes, so that it can rotate'freely on the said socket t concentrically with the spindle 0. cured to a wheel a with helical teeth engaging'with a screw 1;. The spindle of the latter is o inected by a flexible or other shaft 0 to one of the spindles of the kinematograph b, which is operated by hand by means of the handle a; or mechanically or electrically, with a resistance capable of being varied as desired. On the dial 9 is made 'a clearly-visible 'mark, or there is fixed a hand 8 the point of The dial 9 is se- J which is directed toward that of the hand 1". On the casing 7L of the indicator is arranged a contact-button'y, connected to the source of electricity p, and an electromagnet 2, the armature ofwhich acts on the disengaging-lever of the phonograph when the said button y is presse A circuit-breaker w, consisting of a peg engaging between and. connecting two plates 0/ 6, arranged in the path of one of the wires terminatingat the electric source p, enables the latter to be connected with the electromagnets g and .2 when. the apparatus is started. This starting is effected in the following manner: First of all, the two hands 7* g by observing the rhythm of the electromagn mechanism of the phonograp The starting of the spindle 11, car rying thecam e with two bosses, results in producing intermittent passage of current that the movement w by turning the central hand .7 in the directionof the arrowthat is' to say, in the direction permitted by the inclination of the teeth of the ratchet-Wheel l. The peg w is then introduced between the plates and the button y is pressed in order to disengage the driving a by the electromagnet 2.

through the circuit of the electromagnet 'g, which acts then on the mechanism of the hand 1" in order to rotate the latter with a speed in proportion to that of thephono- .graph a. As soon as the hand T has been started the kinemato raph is operated so l iich it imparts to the dial (1, carrying the hand 8, should be exactly the same as that imparted to the hand 1" by the phonograph, which can be easily effected et g-and imparting the same to the motor of the kinematograph.

, It is obvious that various detail modifica-' tions could be made in'this apparatus for synochronizing two movable thin 's caused to move. Thus, for instance, the notions of the dial 9 and of the central hand 1" could be reversedthat is to say, the dial g could be driven by the phonograph and the hand 1 by In an apparatus for synchronizing a phono graph anda kinematograph the combination of a shaft of the phonograph said shaft working at an approximately uniform speed, an electric-circuit closer comprising two projec tions mounted on the shaft, two flexible insulated plates, an electromagnet electrically connected to the plates, a pivoted armature, a spring tending to keep the armature out of contact with the electromagnet, a rotatable speed-indicating needle for the phonograph, mechanism operated to actuate the indicator upon the vibration of the armature, a kinematograph-shaft rotating at variable speeds, a speed-indicating dial mounted concentric With the needle, a needle on the dial, and means for transmitting motion from the kinematograph shaft to the dial.

In testimony whereof I have signed my name to this specification in the'presenoe of two subscribing witnesses.

HENRI JOLY.

Witnesses:

HANSON C. CoxE, GEoRGEs- BONNEU'IL. 

